Maintaining 3D labels as stable objects in 3D world

Patent metadata

Field	Value
Publication number	US-9530239-B2
Application number	US-201414210343-A
Country	US
Kind code	B2
Filing date	Mar 13, 2014
Priority date	Nov 14, 2013
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

Architecture that enables the preservation of label readability in a scene (e.g., map, map tiles, graphical background, etc.) by way of label orientation relative to a fixed heading on a plane or curved surface. After identifying an initial fixed heading, movement of the camera (e.g., zoom-in, zoom-out, position change, etc.) in the scene along that heading without changing the camera heading as measured relative to a fixed point does not alter label orientation. In a mapping implementation, after identifying an initial fixed camera heading over terrain of the Earth, movement of the camera (e.g., zoom-in, zoom-out, position change, etc.) in the scene without changing the camera heading as measured relative to some fixed point does not change label orientation. The orientation of labels may be changed if the heading of the camera is altered, but this change is delayed until camera movement quiesces.

First claim

What is claimed is:

1. A system, comprising:
a hardware memory and a hardware processor respectively configured to store and execute instructions that implement computer-executable components, the computer-executable components comprising;
a heading component configured to establish a fixed heading along a virtual path of a scene, the scene having labels associated with scene objects; and
an orientation component configured to orient the labels in a nearly upright or upright orientation relative to the fixed heading, in a virtualized view of the scene, wherein said labels move toward an upside down position relative to said upright position or almost upright position with the scene while the camera is moving such that when the camera stops said moving the labels turn upright or almost upright.

2. The system of claim 1 , wherein the fixed heading is a loxodrome of a spherical body on which the heading is relative.

3. The system of claim 1 , wherein the fixed heading is selected based on a direction that a virtual camera is pointing.

4. The system of claim 1 , wherein the labels are continuously oriented in the near upright or upright position as navigation progresses along the virtual path.

5. The system of claim 1 , wherein the scene is of a geographical map on which the labels define geographical points of interest.

6. The system of claim 1 , further comprising a rendering component configured to render the labels as a three-dimensional (3D) objects in a 3D scene when the view is stationary or associated with an initial movement of the view.

7. The system of claim 1 , further comprising an animation component configured to animate the labels to an optimal location periodically or when the view has stopped moving.

8. The system of claim 1 , wherein the labels move in unison as any other 3D object of the scene as the view changes to match the heading.

9. A method, comprising acts of:
establishing a fixed heading along a path relative to a scene, the scene having edge align view objects associated with scene objects;
orienting the edge align view objects in the scene when the camera stops such that the view is moved towards the center align position; and
maintaining the heading during movement of the view.

10. The method of claim 9 , further comprising selecting the heading based on a direction in which a virtual camera is pointing.

11. The method of claim 9 , further comprising orienting the edge align view objects continuously or periodically in the readable orientation or approximately readable orientation as the view changes.

12. The method of claim 9 , further comprising rendering the edge align view objects as a three-dimensional (3D) objects in a 3D scene when the view is stationary or associated with an initial movement of the view.

13. The method of claim 9 , further comprising animating the edge align view objects to an optimal location when the view has stopped moving.

14. The method of claim 9 , further comprising animating the edge align view objects in unison to an optimal readable orientation periodically or when the view has stopped moving.

15. A computer-readable hardware storage medium comprising computer-executable instructions that when executed by a microprocessor, cause the microprocessor to perform acts of:
establishing a fixed heading along a loxodrome relative to a scene of a geographical map, the scene having edge align view objects associated with map objects;
orienting the edge align view objects in a view of the map in a readable orientation or approximately readable orientation relative to the fixed heading; and
maintaining the heading during movement.

16. The computer-readable hardware storage medium of claim 15 , further comprising selecting the heading based on a direction in which a virtual camera is pointing.

17. The computer-readable hardware storage medium of claim 15 , further comprising orienting the edge align view objects continuously or periodically in the readable orientation or approximately readable orientation as the view changes.

18. The computer-readable hardware storage medium of claim 15 , further comprising rendering the edge align view objects as a three-dimensional (3D) objects in a 3D scene when the view is stationary or associated with an initial movement of the view.

19. The computer-readable hardware storage medium of claim 15 , further comprising animating the edge align view objects to an optimal location periodically or when the view has stopped moving.

20. The computer-readable hardware storage medium of claim 15 , further comprising animating the edge align view objects in unison to an optimal readable orientation periodically or when the view has stopped moving.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Kunen Isaac Kenneth
• Gunning Brenton
• Dole Daniel
• Candelas Gonzalez Juan Pablo
• Barnett Donald A
• Impas Romualdo
• Buerer David

Classifications

• G06T2200/04

  involving 3D image data · CPC title

• G06T15/20 Primary

  Perspective computation · CPC title

• G06T7/70

  Determining position or orientation of objects or cameras (camera calibration G06T7/80) · CPC title

• G06T2219/2004

  Aligning objects, relative positioning of parts · CPC title

• G06T7/285

  using a sequence of stereo image pairs · CPC title